1 They do their best work at 55ÂºF, but can carry on right down to 0ÂºF. As they eat away at organic materials, they give off a small amount of heat.  Mesophilic - Second wave of microbial activity. Most of the decomposition in a compost pile is mesophilic.
In general, it is thought that implants last approximately 10 years or should be replaced every eight to 10 years. A ruptured saline implant is clinically obvious as the breast will deflate and there will be great asymmetry. A ruptured silicone implant is more difficult to determine and is referred as a silent rupture.
It all depends: Stents will last forever if they are made of some sort of metal as most are. There is a new product on the market, a new heart stent that dissolves in the artery three years after being implanted.It is yet to be used in clinically, and it will be a while (years) before its risks & benefits will be known.ee the live video session that I recorded on 4/25/2014 to discuss stenting in detail. You might also want to look at my answer of June 3rd: http://www.cardiachealth.org/ca-blog/how-long-does-heart-stent-last-do-t...